Protective garment for asbestos removal work with air-blower / exhauster attachment part

Abstract

To provide a protective garment for asbestos removal work with an air-blower / exhauster attachment part capable of reducing the danger of heat stroke without causing any trouble in work even in the asbestos removal work requiring severe work.SOLUTION: A protective garment P1 for asbestos removal work with an air-blower / exhauster attachment part comprises air supplying / discharging parts disposed on both right and left sides of the front side body part, and an air-blower / exhauster attachment part which is disposed on the inner side of the air-supplying / discharging part that is the inner side of the protective garment and allows the air-blower / exhauster to be detachably attached. The air supplying / discharging part comprises a filter member which has a laminated intermediate product containing a polyacrylonitrile fiber and a polyolefin fiber and having a basis weight of 150 to 250 g / m2, and an outer layer and an inner layer each containing a polypropylene fiber and having a basis weight of 15 to 35 g / m2. The protective garment is made of a plastic film layer except for the air supplying / discharging part and the air-blower / exhauster attachment part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a protective suit for asbestos removal work that is equipped with a blower / exhaust fan attachment section. [Background technology]

[0002] Asbestos was widely used in the latter half of the 20th century for building materials, friction materials, etc. However, since it caused serious health problems such as lung cancer and mesothelioma after a long incubation period for workers and the general public who inhaled asbestos, most developed countries have now banned the use of asbestos.

[0003] However, as the demolition of existing buildings will continue until the mid-21st century, measures to prevent asbestos exposure among workers engaged in tasks such as the demolition of asbestos-containing buildings and measures to prevent asbestos from being dispersed and leaked into the general environment have become extremely important and urgent issues.

[0004] For this reason, the Ministry of Health, Labour and Welfare and the Ministry of the Environment have created a "Comprehensive Manual for Preventing Asbestos Exposure and Asbestos Dispersal and Leakage During the Demolition of Buildings, etc.", which provides guidelines for asbestos removal work. [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] Ministry of Health, Labor and Welfare, Ministry of the Environment, "Comprehensive Manual for Preventing Asbestos Exposure and Asbestos Dispersion and Leakage During the Demolition of Buildings, etc." March 2021 (with corrections made in March 2022)<https: / / www.env.go.jp / content / 900396898.pdf> Summary of the Invention [Problem to be solved by the invention]

[0006] However, as described in Non-Patent Document 1, in order to prevent asbestos from adhering to the body surface, underwear, and work clothes worn under the protective clothing, it is stipulated that workers must wear protective clothing equivalent to or better than JIS T 8115 airtight protective clothing for suspended solid dust (Type 5). Such protective clothing covers the entire body, including the head, and requires taping at the joints between the protective clothing and the full-face mask, gloves, shoe covers, etc. of the respiratory protective equipment, resulting in a very tight seal. Performing extremely complex and diverse tasks for long periods of time while wearing such protective clothing places a heavy burden on workers.

[0007] Furthermore, in such circumstances, the risk of heatstroke increases significantly when working in the intense heat of summer. Also, the heat can cause workers to lose concentration, which can lead to mistakes that should not be made, especially in asbestos removal work.

[0008] In cases like the above, it may be possible to use a clothing-mounted fan, which is now being used at construction sites, but it is necessary to prevent asbestos from being drawn into the protective clothing. Even if it is possible to draw in only outside air, there is a possibility that the air drawn into the protective clothing will inflate and cause problems during asbestos removal work indoors, where there are often narrow spaces.

[0009] The present invention has been made to solve the above-mentioned problems, and its purpose is to reduce the risk of heat stroke without interfering with the work, even during asbestos removal work, which is a harsh task. [Means for solving the problem]

[0010] The protective clothing for asbestos removal work with a blower and exhaust fan attachment part according to one aspect of the present invention comprises an air intake and exhaust part provided on both the left and right sides of the front torso part, and an air intake and exhaust fan attachment part provided inside the protective clothing on the air intake and exhaust part, for attaching a detachable blower and exhaust fan, and the air intake and exhaust part is made of a material containing polyacrylonitrile fiber and polyolefin fiber with a basis weight of 150 to 250 g / m2 and a laminated intermediate body containing polypropylene fiber with a basis weight of 15 to 35 g / m 2 and a filter member having an outer layer and an inner layer, and a fabric having a plastic film layer except for the intake and exhaust part and the exhaust fan mounting part.

[0011] According to this aspect, the air supply and exhaust fan draws outside air into the protective clothing through the air supply and exhaust section when blowing air, and exhausts humid air that has been warmed by body heat inside the protective clothing through the air supply and exhaust section when exhausting air. This makes it possible to keep the temperature and humidity inside the protective clothing low, thereby reducing the risk of heatstroke among workers.

[0012] Another aspect of the present invention provides protective clothing for asbestos removal work with a ventilation fan attachment section, which includes an air intake and exhaust section provided on both the left and right sides of the back side body section, and a ventilation fan attachment section provided inside the protective clothing on the ventilation and exhaust section, for detachably attaching a ventilation fan, and the ventilation section is made of a polyester fiber (polyacrylonitrile fiber and polyolefin fiber) having a basis weight of 150 to 250 g / m 2 and a laminated intermediate body containing polypropylene fiber with a basis weight of 15 to 35 g / m 2 and a filter member having an outer layer and an inner layer, and a fabric having a plastic film layer except for the intake and exhaust part and the exhaust fan mounting part.

[0013] The protective clothing for asbestos removal work with an exhaust fan attachment section according to the above aspect may include an air inlet / outlet section provided on the back side of the torso section above the intake / exhaust section.

[0014] According to this aspect, air can be introduced and exhausted not only from the air intake and exhaust section but also from the air inlet and outlet section, making it possible to intake and exhaust air more efficiently throughout the protective clothing.

[0015] The protective clothing for asbestos removal work with an exhaust fan attachment section according to the above-mentioned another aspect may have an air inlet / outlet section provided on the front torso section above the intake / exhaust section.

[0016] In the protective clothing for asbestos removal work with a blower / exhaust fan attachment section of each of the above aspects, the laminated intermediate body, the outer layer, and the inner layer may be bonded together by ultrasonic bonding.

[0017] According to this aspect, the possibility of asbestos fibers being drawn into the protective clothing when air is blown in is extremely low, outside air can be efficiently introduced into the protective clothing, and the air discharge is not impeded even when air is exhausted.

[0018] In addition, in the protective clothing for asbestos removal work with the blower / exhaust fan attachment section of each of the above aspects, the air inlet / outlet section may be an SMS nonwoven fabric or the filter member.

[0019] According to this aspect, it is possible to have good air intake and exhaust properties and to greatly reduce the possibility of asbestos fibers being taken in through the air inlet and outlet parts.

[0020] In each of the above aspects of protective clothing for asbestos removal work with an exhaust fan attachment section, the exhaust fan attachment section may include a synthetic resin member having an opening for attaching the exhaust fan, and an outer frame for attaching the synthetic resin member, and the opening may include a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

[0021] According to this aspect, it becomes even easier for workers to install the blower and exhaust fan, and the blower and exhaust fan can be held stably.

[0022] In the protective clothing for asbestos removal work with a blower / exhaust fan attachment section of each of the above aspects, the protective clothing for asbestos removal work with a blower / exhaust fan may be configured such that the blower / exhaust fan is attached to the blower / exhaust fan attachment section.

[0023] In the protective clothing for asbestos removal work with a blower and exhaust fan of the above aspect, the blower and exhaust fan may alternately blow and exhaust air using a blower and exhaust device including an operating unit.

[0024] According to this aspect, the inside of the protective clothing can be kept comfortable without the worker being aware of it, allowing the worker to concentrate on his work. [Effects of the Invention]

[0025] According to the protective clothing for asbestos removal work of the present invention, even during asbestos removal work, which is a harsh task, the risk of heat stroke can be reduced without interfering with the work. [Brief explanation of the drawings]

[0026] [Figure 1] 1A and 1B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower / exhaust fan attachment section according to a first embodiment of the present invention. [Figure 2] 10A and 10B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower / exhaust fan attachment section according to a second embodiment of the present invention. [Figure 3] 1 is an enlarged front view of an air intake / exhaust section of a protective suit for asbestos removal work with an exhaust fan attachment section according to a first embodiment of the present invention. [Figure 4] 10A and 10B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower / exhaust fan attachment section according to a third embodiment of the present invention. [Figure 5] 10A and 10B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower / exhaust fan attachment part according to a fourth embodiment of the present invention. [Figure 6] 1A and 1B are a schematic front view and a schematic cross-sectional view, respectively, showing an ultrasonically bonded portion of an example of a filter member used in a protective clothing for asbestos removal work with a blower / exhaust fan attachment portion according to a first embodiment of the present invention. [Figure 7] 1 is a schematic diagram showing an example of a blower / exhaust fan attachment part used in the protective clothing for asbestos removal work with a blower / exhaust fan attachment part of the present invention. [Figure 8] FIG. 1 is a schematic diagram showing (a) the process of attaching an exhaust fan to an example of an exhaust fan attachment part used in protective clothing for asbestos removal work with an exhaust fan attachment part of the present invention, and (b) a schematic diagram showing the state in which the exhaust fan is attached. [Figure 9]10 is a schematic diagram showing another example of a blower / exhaust fan attachment part used in the protective clothing for asbestos removal work with a blower / exhaust fan attachment part of the present invention. FIG. [Figure 10] FIG. 1 is a schematic side view showing (a) the state of exhausting air when an exhaust fan is attached to an example of an exhaust fan attachment part used in protective clothing for asbestos removal work with an exhaust fan attachment part of the present invention, and (b) the state of blowing air when the exhaust fan is attached to an example of an exhaust fan attachment part used in protective clothing for asbestos removal work with an exhaust fan attachment part of the present invention, and when the protective clothing is in operation. [Figure 11] 1 is a schematic front view showing the air flow when the exhaust fan is attached and operated in a protective clothing for asbestos removal work with an exhaust fan attachment portion according to a first embodiment of the present invention. FIG. [Figure 12] FIG. 10A is a schematic front view and FIG. 10B is a schematic back view showing the air flow when the exhaust fan is attached and operated in a protective suit for asbestos removal work with an exhaust fan attachment part according to a third embodiment of the present invention. [Figure 13] 1 is a schematic diagram showing an example of an air supply and exhaust device used in the protective clothing for asbestos removal work with an air supply and exhaust fan attachment part of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0028] 1A and 1B are a front view and a back view, respectively, of a protective suit for asbestos removal work with an exhaust fan attachment part according to a first embodiment of the present invention. As shown in Fig. 1A, the protective suit for asbestos removal work with an exhaust fan attachment part P1 has an intake and exhaust part 1 on both the left and right sides of the front torso part.

[0029] As described on page 253 of the "Comprehensive Manual for Preventing Asbestos Exposure and Asbestos Scattering and Leakage During the Demolition of Buildings, etc." (March 2021, with corrections made in March 2022), P1 protective clothing for asbestos removal work with an exhaust fan attachment meets the requirements of JIS T 8115 airtight protective clothing (Type 5) for airborne solid dust in asbestos removal work locations such as inside negative pressure isolation structures. The same applies to P2, P3, and P4 protective clothing for asbestos removal work described below.

[0030] The material of the protective clothing for asbestos removal work with exhaust fan attachment parts P1 is not particularly limited as long as it meets the requirements of JIS T 8115, airtight protective clothing for airborne solid dust (Type 5), but it can be, for example, a one-layer or two-layer structure selected from the group consisting of a plastic film layer, an SMS nonwoven fabric layer, and a polypropylene spunbond layer. Of these, a two-layer structure of a plastic film layer and an SMS nonwoven fabric layer is preferable from the perspective of preventing the ingestion of asbestos fibers as much as possible. This material is contained in the protective clothing for asbestos removal work with exhaust fan attachment parts P1, excluding the intake and exhaust part 1.

[0031] Examples of materials for the plastic film layer include polyethylene, polyvinyl chloride, polyethylene terephthalate, polyacrylonitrile, ethylene-vinyl alcohol copolymer, polyvinyl alcohol, etc. Among these, polyethylene is preferred from the viewpoint of cost reduction, and high-density polyethylene is more preferred from the viewpoint of performance in preventing the incorporation of asbestos fibers.

[0032] The material of the SMS nonwoven fabric layer may be, for example, a three-layer structure of a polypropylene spunbond layer, a polypropylene meltblown layer, and a polypropylene spunbond layer.

[0033] The intake and exhaust section 1 is used to pass air between the outside and inside of the protective clothing P1 for asbestos removal work with an exhaust fan attachment section. When the attached exhaust fan is blowing air, it introduces outside air into the protective clothing through the intake and exhaust section 1, and when it is exhausting air, it exhausts air that has been warmed by the worker's body temperature inside the protective clothing and which has become humid mainly due to the worker's sweat to the outside through the intake and exhaust section 1. The intake and exhaust section 1 is usually installed on the front torso section, but it may also be installed on the side part (flank area) of the torso or on the back side.

[0034] 2A and 2B are front and back views, respectively, of a protective suit for asbestos removal work with a blower and exhaust fan attachment part according to a second embodiment of the present invention. As shown in Fig. 2B, the protective suit for asbestos removal work with a blower and exhaust fan attachment part P2 has air intake and exhaust parts 11 on both the left and right sides of the back body part.

[0035] The material of the protective clothing for asbestos removal work P2 with air blower attachment parts is the same as that of the protective clothing for asbestos removal work with air blower attachment parts P1, and the air intake and exhaust part 11 is the same as that of the air intake and exhaust part 1.

[0036] Figure 3 is an enlarged front view of the air intake and exhaust section of protective clothing P1 for asbestos removal work with an air intake and exhaust fan attachment section according to a first embodiment of the present invention. As shown in Figure 3, air intake and exhaust section 1 is formed by sealing an opening provided in protective clothing P1 for asbestos removal work with an air intake and exhaust fan attachment section with a filter member 5. A blower and exhaust fan F1 is detachably attached to the air intake and exhaust section 1 inside protective clothing P1 for asbestos removal work with an air intake and exhaust fan attachment section. When air intake and exhaust fan F1 is operated, air is introduced into protective clothing P1 for asbestos removal work with an air intake and exhaust fan attachment section via the filter member 5 and then exhausted to the outside.

[0037] Figure 4 shows (a) a front view and (b) a back view of protective clothing for asbestos removal work with an air supply and exhaust fan attachment section according to a third embodiment of the present invention. As shown in Figure 4(a), protective clothing for asbestos removal work P3 with an air supply and exhaust fan attachment section has air intake and exhaust sections 101 on both the left and right sides of the front torso section. As shown in Figure 4(b), protective clothing for asbestos removal work P3 with an air supply and exhaust fan attachment section has air inlet and outlet sections 102 above the air intake and exhaust section 101 on the back torso section.

[0038] The air inlet / outlet section 102 is used to exhaust air from the protective clothing for asbestos removal work P3 with an air supply / exhaust fan attachment section when the air supply / exhaust fan F1 is blowing air, and to introduce outside air into the protective clothing for asbestos removal work P3 with an air supply / exhaust fan attachment section when the air supply / exhaust fan F1 is exhausting air. The air inlet / outlet section 102 is provided above the air supply / exhaust section 101 and on the opposite side of the air supply / exhaust section 101, from the perspective of effectively exhausting air from inside the protective clothing that has been warmed by body temperature. Examples of materials for the air inlet / outlet section 102 include SMS nonwoven fabric and the same filter as that for the air supply / exhaust section 101. The area of ​​the air inlet / outlet section 102 is preferably at least larger than that of the air supply / exhaust section 101.

[0039] The material of the protective clothing for asbestos removal work with air blower attachment section P3 is the same as that of the protective clothing for asbestos removal work with air blower attachment section P1, and the air intake and exhaust section 101 is the same as that of the air intake and exhaust section 1.

[0040] Figure 5 shows (a) a front view and (b) a back view of protective clothing for asbestos removal work with air supply and exhaust fan attachment parts according to a fourth embodiment of the present invention. As shown in Figure 5(b), protective clothing for asbestos removal work P4 with air supply and exhaust fan attachment parts has air intake and exhaust parts 111 on both the left and right sides of the back side torso part. As shown in Figure 5(a), protective clothing for asbestos removal work P4 with air supply and exhaust fan attachment parts has air inlet and outlet parts 112 above the air intake and exhaust part 111 on the front side torso part.

[0041] The material of the protective clothing P4 for asbestos removal work with an exhaust fan attachment section is the same as that of the protective clothing P1 for asbestos removal work with an exhaust fan attachment section, and the air intake and exhaust section 111 is the same as the air intake and exhaust section 1, and the air inlet and outlet section 112 is the same as the air inlet and outlet section 102.

[0042] 6A and 6B are a schematic front view and a schematic cross-sectional view, respectively, showing an ultrasonically bonded portion of an example of a filter member used in a protective clothing for asbestos removal work with a blower and exhaust fan attachment part according to a first embodiment of the present invention. The filter member 5 must be constructed so that asbestos fibers do not penetrate into the inside of the protective clothing for asbestos removal work with a blower and exhaust fan attachment part P1 during asbestos removal work. As shown in FIG. 6B, the filter member 5 has a laminated intermediate body L2 containing polyacrylonitrile fibers and polyolefin fibers, and an outer layer L1 and an inner layer L3 each containing polypropylene fibers.

[0043] The basis weight of the laminated intermediate L2 is 150 to 250 g / m 2 and preferably 160 to 240 g / m 2 The basis weight of the outer layer L1 and the basis weight of the inner layer L3 are 15 to 35 g / m 2 and preferably 20 to 30 g / m 2 is.

[0044] The laminated intermediate L2 can be produced by a known method, such as those described in JP-A-7-256024, JP-A-2000-189732, and JP-A-2002-249963. Examples of polyolefin fibers include polyethylene and polypropylene. Of these, polypropylene is preferred from the viewpoints of maintaining breathability and effectively preventing the penetration of asbestos fibers.

[0045] The outer layer L1 and the inner layer L3 can be manufactured by a known method. For example, a mask made of a nonwoven fabric of polypropylene fibers can be used, similar to a commonly manufactured mask made of a nonwoven fabric containing polypropylene.

[0046] Examples of methods for manufacturing the filter member 5 include spunbonding and ultrasonic bonding. Of these, ultrasonic bonding is preferred in the present case. L1, L2, and L3 are laminated, and the outer frame adhesive portion E1 and multiple inner frame adhesive portions E2 are ultrasonically bonded to manufacture the filter member 5, as shown in FIG. 6(a).

[0047] The filter member 5 is attached to the protective clothing for asbestos removal work P1 with a blower / exhaust fan attachment section in such a way that it seals the opening and completely blocks the opening. Attachment methods include, for example, double-sided tape and sewing. The size of the opening is preferably slightly smaller than the filter member 5, and more preferably the same size as the ventilation section 6.

[0048] Figure 7 is a schematic diagram showing an example of an air supply and exhaust fan mounting part used in the protective clothing for asbestos removal work with an air supply and exhaust fan mounting part of the present invention. As shown in Figure 7, the air supply and exhaust fan mounting part 20 includes an outer frame 21 and a synthetic resin member 22. The air supply and exhaust fan mounting part 20 is approximately the same size as the filter member 5, and is attached and fixed to the inside of the protective clothing for asbestos removal work with an air supply and exhaust fan mounting part P1. The synthetic resin member 22 is the same size as or slightly smaller than the outer frame 21, and when attached to the protective clothing for asbestos removal work with an air supply and exhaust fan mounting part P1 and fixed to the protective clothing for asbestos removal work with an air supply and exhaust fan mounting part P1, it is positioned so as to be located more inside the protective clothing for asbestos removal work with an air supply and exhaust fan mounting part P1 than the outer frame 21.

[0049] The method for fixing the outer frame 21 to the protective clothing for asbestos removal work P1 with a blower / exhaust fan attachment section is not particularly limited, but it is possible to attach it with, for example, double-sided tape.

[0050] Examples of the material of the synthetic resin member 22 include plastic and rubber. Examples of plastic include thermoplastic resin. Examples of thermoplastic resin include polyethylene, polypropylene, and polyethylene terephthalate. The synthetic resin member 22 includes an opening 23, a first engagement portion 24, a second engagement portion 25, a notch 26, and a protrusion 27a.

[0051] 8A is a schematic diagram showing the process of attaching an exhaust fan to an example of an exhaust fan attachment part used in protective clothing for asbestos removal work with an exhaust fan attachment part of the present invention, and FIG. 8B is a schematic diagram showing the state in which the exhaust fan is attached. The process of attaching the exhaust fan F1 to the exhaust fan attachment part 20 will be described below. Note that the exhaust fan F1 can also be replaced with a commercially available workwear fan, for example.

[0052] First, insert the flange portion F1a of the exhaust fan F1 into the notch 26 until it engages with the first engagement portion 24. Then, bend the second engagement portion 25 toward the inside of the protective clothing P1 for asbestos removal work with exhaust fan attachment portion and engage it with the upper part of the flange portion F1a as shown in Figure 8(b), thereby fixing the exhaust fan F1 to the exhaust fan attachment portion 20.

[0053] Fig. 9 is a schematic diagram showing another example of a blower / exhaust fan mounting part used in the protective clothing for asbestos removal work with a blower / exhaust fan mounting part of the present invention. As shown in Fig. 9, a fold line 27b is provided in the synthetic resin member 22, and the protrusion 27a is rotatable around the fold line 27b. Depending on the material of the synthetic resin member 22, providing the fold line 27b may make it possible to mount the blower / exhaust fan F1 more smoothly.

[0054] Figure 10 shows a schematic side view (a) of an example of a blower / exhaust fan attached to a blower / exhaust fan mounting section used in a protective clothing for asbestos removal work with a blower / exhaust fan mounting section of the present invention, showing the state of exhausting air and (b) of a state of blowing air. As shown in Figure 10(a), when exhausting air, the blower / exhaust fan F1 is in exhaust mode, and humid air is expelled from the inside of the protective clothing for asbestos removal work with a blower / exhaust fan mounting section P1. As shown in Figure 10(b), when blowing air, the blower / exhaust fan F1 is in blowing mode, and external air is introduced into the protective clothing for asbestos removal work with a blower / exhaust fan mounting section P1. As indicated by the double-headed arrows in Figure 10, the blower / exhaust fan F1 may alternate between exhausting air and blowing air.

[0055] Although not shown in Figure 10, the protective clothing P1 for asbestos removal work with an exhaust fan attachment part has a filter member 5 attached to the outside of the protective clothing P1 for asbestos removal work with an exhaust fan attachment part, and an exhaust fan attachment part 20 is provided on the inside of the protective clothing P1 for asbestos removal work with an exhaust fan attachment part. The exhaust fan F1 is attached further inside so that the flange part F1a engages with a synthetic resin member 22. With this configuration, the exhaust fan that is used repeatedly can be easily attached and detached for protective clothing for asbestos removal work that must be discarded after each work session, and the protective clothing for asbestos removal work can be quickly put on.

[0056] Figure 11 is a schematic front view showing the air flow when the air blower / exhaust fan is attached and operated in the protective clothing for asbestos removal work with an air blower / exhaust fan attachment part according to the first embodiment of the present invention. As shown in Figure 11, when the air blower / exhaust fan F1 attached to the air blower / exhaust fan attachment part inside the protective clothing is operating, air flows in and out of the protective clothing for asbestos removal work with an air blower / exhaust fan attachment part P1 through the air intake / exhaust part 1. As described above, by using the air blower / exhaust fan F1, the protective clothing can be worked in comfort without shrinking or expanding too much, and the inside of the protective clothing is less likely to become hot and humid, making it possible to effectively prevent heatstroke.

[0057] Figure 12 is a schematic front view (a) and a schematic back view (b) showing the air flow when an air blower / exhaust fan is attached and operated in a protective clothing for asbestos removal work with an air blower / exhaust fan attachment part according to a third embodiment of the present invention. As shown in Figure 12(a), when the air blower / exhaust fan F1 attached to the air blower / exhaust fan attachment part inside the protective clothing is operating, air flows in and out of the inside and outside of the protective clothing for asbestos removal work with an air blower / exhaust fan attachment part P3 through the air intake / exhaust part 101. On the other hand, as shown in Figure 12(b), air flows in the opposite direction through the air inlet / outlet part 102.

[0058] Although not shown, from the standpoint of work continuity and ease of donning and doffing the protective clothing, it is preferable to provide a power supply attachment section on the inside of the protective clothing for asbestos removal work with an exhaust fan attachment section for attaching a power supply section such as a battery to operate the exhaust fan F1.

[0059] Fig. 13 is a schematic diagram showing an example of an air supply and exhaust device used in the protective clothing for asbestos removal work with air supply and exhaust fan attachment parts of the present invention. As shown in Fig. 13, the air supply and exhaust device A includes an air supply and exhaust fan F2, a first connecting member 131, an operating unit 132, a second connecting member 133, and a power supply unit 134. When attached to the protective clothing for asbestos removal work with air supply and exhaust fan attachment parts P1 to P4, the two air supply and exhaust fans F2 are connected to the operating unit 132 by the first connecting member 131. The operating unit 132 is also connected to the power supply unit 134 by the second connecting member 133.

[0060] The first connecting member 131 and the second connecting member 133 are for supplying power from the power supply unit 134 to the exhaust fan F2. The power supply unit 134 may be a battery or the like, but may also be one that can receive power from a member other than the power supply unit 134.

[0061] The operation unit 132 can switch, for example, the blowing mode, exhaust mode, blowing and exhausting mode of the blowing and exhausting fan F2. As shown in Fig. 13, for example, button 1 can be used to switch the blowing mode, button 2 to the exhaust mode, and button 3 to the blowing and exhausting mode. Alternatively, the operation unit 132 can be separated and made capable of communicating with the blowing and exhausting fan F2 and the power supply unit 134, so that the modes can be switched wirelessly. An example of such a wireless communication method is Bluetooth (registered trademark). [Example]

[0062] The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

[0063] (Laminated intermediate of filter member) The laminated intermediate of the filter member contains polyacrylonitrile fibers and polyolefin fibers, and filter members or nonwoven fabrics made from a mixture of polyacrylonitrile fibers and polyolefin fibers have been known for some time. For example, Japanese Patent Application Laid-Open No. 2005-256024 discloses an air filter material with an electrostatic effect, which is produced by needling a mixture of these fibers and activating it with heat. Japanese Patent Application Laid-Open No. 2000-189732 also discloses a triboelectrically charged nonwoven fabric prepared as a prefilter by needle-punching polyolefin fibers and acrylic fibers. Japanese Patent Application Laid-Open No. 2002-249963 also discloses an electrically charged nonwoven fabric made from polyolefin fibers containing a phosphorus-based additive and a sulfur-based additive.

[0064] <Example> To prepare the filter member, polypropylene fibers and polyacrylonitrile fibers were mixed according to the description of the examples in JP-A-2002-249963, and the mixture was punched into a sheet having a basis weight of 80 g / m by needle punching. 2 This nonwoven fabric was used as a laminated intermediate, and a nonwoven fabric having a basis weight of 25 g / m was further used as an outer layer. 2 and a polypropylene spunbond nonwoven fabric of 20 g / m2 as the inner layer. 2 The resulting sheet was superimposed on a polypropylene spunbond nonwoven fabric and ultrasonically bonded as shown in FIG. 4 to produce a filter member according to the present invention.

[0065] (Wet bulb globe temperature (WBGT) test when wearing protective clothing for asbestos removal work) "Preventing Heatstroke in Daily Life, 3rd Edition (2023)" by the Japanese Society of Biometeorology<https: / / seikishou.jp / cms / wp-content / uploads / 008ab7fdbb0b958314827de9a7b8c74c.pdf> As described in the Guidelines, the wet bulb globe temperature (WBGT) is used as an index for preventing heatstroke. In these guidelines, the risk of heatstroke is indicated by four levels based on the WBGT value: "Danger," "High Alert," "Caution," and "Caution." Specifically, this can be determined using the indoor WBGT simplified estimation chart Ver. 4. In this test, the risk of heatstroke was confirmed using protective clothing P1 for asbestos removal work with an exhaust fan attachment section and a filter member used in the present invention.

[0066] [Measurement conditions] Indoor temperature 27.5℃, humidity 65% Wearer: Man in his 40s

[0067] First, after putting it on, the exhaust fan was turned off and then 9 minutes later, the torso area inside the protective clothing P1 for asbestos removal work with an exhaust fan attachment part was measured, and the temperature was 31.5°C and the humidity was 73%.

[0068] After that, the air blower was turned on and measurements were taken while switching between blowing and exhausting every minute. After 5 minutes, the temperature was 31.5°C and the humidity was 51%.

[0069] When these values ​​are applied to the indoor WBGT simplified estimation chart Ver. 4, the result remains "high alert," while the example improves from "high alert" to "alert." Therefore, it can be seen that the protective clothing P1 for asbestos removal work with exhaust fan attachment parts according to the present invention is very effective in preventing heatstroke in workers.

[0070] Furthermore, it was found that the protective clothing for asbestos removal work P1 with an exhaust fan attachment part did not expand or contract too much during the measurement, and did not cause any problems during work.

[0071] The embodiments of the present invention include the following configurations.

[0072] (Configuration 1) Intake and exhaust sections provided on both the left and right sides of the front body section; A protective clothing for asbestos removal work with a blower and exhaust fan attachment part, which is provided inside the protective clothing of the air intake and exhaust part and has a blower and exhaust fan attachment part for attaching a blower and exhaust fan detachably, The air intake and exhaust section is made of a fiber containing polyacrylonitrile fiber and polyolefin fiber with a basis weight of 150 to 250 g / m 2 and a laminated intermediate body containing polypropylene fiber with a basis weight of 15 to 35 g / m 2 and an inner layer, Protective clothing for asbestos removal work with an exhaust fan attachment section, which is made of fabric having a plastic film layer, except for the intake and exhaust section and the exhaust fan attachment section.

[0073] (Configuration 2) Intake and exhaust sections provided on both the left and right sides of the rear body section; A protective clothing for asbestos removal work with a blower and exhaust fan attachment part, which is provided inside the protective clothing of the air intake and exhaust part and has a blower and exhaust fan attachment part for attaching a blower and exhaust fan detachably, The air intake and exhaust section is made of a fiber containing polyacrylonitrile fiber and polyolefin fiber with a basis weight of 150 to 250 g / m 2 and a laminated intermediate body containing polypropylene fiber with a basis weight of 15 to 35 g / m 2 and an inner layer, Protective clothing for asbestos removal work with an exhaust fan attachment section, which is made of fabric having a plastic film layer, except for the intake and exhaust section and the exhaust fan attachment section.

[0074] (Configuration 3) 2. The protective clothing for asbestos removal work with a blower / exhaust fan mounting section according to claim 1, further comprising an air inlet / outlet section provided on the back side body section above the air intake / exhaust section.

[0075] (Configuration 4) 3. The protective clothing for asbestos removal work with a blower / exhaust fan mounting section according to claim 2, further comprising an air inlet / outlet section provided on the front body section above the air intake / exhaust section.

[0076] (Configuration 5) 5. A protective clothing for asbestos removal work with a blower / exhaust fan attachment section as described in any one of claims 1 to 4, wherein the laminated intermediate body, the outer layer, and the inner layer are bonded by ultrasonic bonding.

[0077] (Configuration 6) 5. The protective clothing for asbestos removal work with a blower / exhaust fan attachment section according to claim 1, wherein the air inlet / outlet section is an SMS nonwoven fabric or the filter member.

[0078] (Configuration 7) 6. The protective clothing for asbestos removal work with a blower / exhaust fan attachment section according to claim 5, wherein the air inlet / outlet section is an SMS nonwoven fabric or the filter member.

[0079] (Configuration 8) the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; 5. Protective clothing for asbestos removal work with an exhaust fan mounting section as described in any one of claims 1 to 4, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

[0080] (Configuration 9) the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan mounting section as described in claim 5, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

[0081] (Configuration 10) the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan mounting section as described in claim 6, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

[0082] (Configuration 11) the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan mounting section as described in claim 7, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

[0083] (Configuration 12) 10. Protective clothing for asbestos removal work with a blower and exhaust fan attachment section, comprising the protective clothing for asbestos removal work with a blower and exhaust fan attachment section according to claim 9, wherein the blower and exhaust fan is attached to the blower and exhaust fan attachment section.

[0084] (Configuration 13) 11. Protective clothing for asbestos removal work with a blower and exhaust fan attachment section, comprising the protective clothing for asbestos removal work with a blower and exhaust fan attachment section according to claim 10, wherein the blower and exhaust fan is attached to the blower and exhaust fan attachment section.

[0085] (Configuration 14) 12. Protective clothing for asbestos removal work with a blower and exhaust fan attachment section, wherein the blower and exhaust fan is attached to the blower and exhaust fan attachment section of the protective clothing for asbestos removal work with a blower and exhaust fan attachment section according to claim 11.

[0086] (Configuration 15) 13. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 12, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

[0087] (Configuration 16) 14. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 13, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

[0088] (Configuration 17) 15. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 14, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

[0089] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0090] 1,11,101,111 Intake and exhaust section 102,112 Air intake / exit 5 Filter material 6 Ventilation section 20. Exhaust fan mounting section 21 Outer Frame 22 Synthetic resin components 23 Opening 24 First engagement portion 25 Second engagement portion 26 Notch 27a Protrusion 27b Folding line 131 first connecting member 132 Operation section 133 second connecting member 134 Power supply section A Ventilation / exhaust device F1 blower / exhaust fan F1a flange L1 outer layer L2 laminated intermediate L3 inner layer P1, P2, P3, P4 Protective clothing for asbestos removal work with exhaust fan attachment

Claims

1. Intake and exhaust sections provided on both the left and right sides of the front body section; A protective clothing for asbestos removal work with a blower and exhaust fan attachment part, which is provided inside the protective clothing of the air intake and exhaust part and has a blower and exhaust fan attachment part for attaching a blower and exhaust fan detachably, The air intake and exhaust section is made of a material containing polyacrylonitrile fiber and polyolefin fiber with a basis weight of 150 to 250 g / m ２ and a laminated intermediate body having a basis weight of 15 to 35 g / m containing polypropylene fiber. ２ and an inner layer, Protective clothing for asbestos removal work with an exhaust fan attachment section, which is made of fabric having a plastic film layer, except for the intake and exhaust section and the exhaust fan attachment section.

2. Intake and exhaust sections provided on both the left and right sides of the rear body section; A protective clothing for asbestos removal work with a blower and exhaust fan attachment part, which is provided inside the protective clothing of the air intake and exhaust part and has a blower and exhaust fan attachment part for attaching a blower and exhaust fan detachably, The air intake and exhaust section is made of a material containing polyacrylonitrile fiber and polyolefin fiber with a basis weight of 150 to 250 g / m ２ and a laminated intermediate body having a basis weight of 15 to 35 g / m containing polypropylene fiber. ２ and an inner layer, Protective clothing for asbestos removal work with an exhaust fan attachment section, which is made of fabric having a plastic film layer, except for the intake and exhaust section and the exhaust fan attachment section.

3. 2. The protective clothing for asbestos removal work with a blower / exhaust fan mounting section according to claim 1, further comprising an air inlet / outlet section provided on the back side body section above the air intake / exhaust section.

4. 3. The protective clothing for asbestos removal work with a blower / exhaust fan mounting section according to claim 2, further comprising an air inlet / outlet section provided in the front body section above the air intake / exhaust section.

5. 5. The protective clothing for asbestos removal work with a blower / exhaust fan attachment section according to claim 1, wherein the laminated intermediate body, the outer layer, and the inner layer are bonded together by ultrasonic bonding.

6. 5. The protective clothing for asbestos removal work with a blower / exhaust fan attachment section according to claim 1, wherein the air inlet / outlet section is an SMS nonwoven fabric or the filter member.

7. 6. The protective clothing for asbestos removal work with a blower / exhaust fan attachment section according to claim 5, wherein the air inlet / outlet section is an SMS nonwoven fabric or the filter member.

8. the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; 5. Protective clothing for asbestos removal work with an exhaust fan attachment section as described in any one of claims 1 to 4, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

9. the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan attachment section as described in claim 5, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

10. the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan attachment section as described in claim 6, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

11. the exhaust fan mounting portion includes a synthetic resin member having an opening for mounting the exhaust fan, and an outer frame for mounting the synthetic resin member; The protective clothing for asbestos removal work with an exhaust fan attachment section as described in claim 7, wherein the opening comprises a substantially U-shaped first exhaust fan engagement section, a second exhaust fan engagement section above the first exhaust fan engagement section, and a notch provided between the first exhaust fan engagement section and the second exhaust fan engagement section.

12. 10. Protective clothing for asbestos removal work with a blower / exhaust fan mounting section, comprising the blower / exhaust fan mounted to the blower / exhaust fan mounting section of the protective clothing for asbestos removal work with a blower / exhaust fan mounting section according to claim 9.

13. 11. Protective clothing for asbestos removal work with a blower and exhaust fan attachment section according to claim 10, wherein the blower and exhaust fan is attached to the blower and exhaust fan attachment section.

14. 12. Protective clothing for asbestos removal work with a blower and exhaust fan attachment section according to claim 11, wherein the blower and exhaust fan is attached to the blower and exhaust fan attachment section.

15. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 12, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

16. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 13, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

17. The protective clothing for asbestos removal work with a blower and exhaust fan according to claim 14, wherein the blower and exhaust fan alternately blows and exhausts air using a blower and exhaust device including an operating unit.

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